Time in BIOT and MDT
The time difference between British Indian Ocean Time (BIOT) and Mountain Daylight Time (MDT) is 12 hours. Mountain Daylight Time is 12 hours behind British Indian Ocean Time.
This means 9am BIOT is 9pm MDT (previous day) and 5pm BIOT is 5am MDT.
British Indian Ocean Time
- The current local time in BIOT is 4:32 am (July 19, 2026)
- BIOT time zone offset is UTC+06:00
Mountain Daylight Time
- The current local time in MDT is 4:32 am (July 19, 2026)
- MDT time zone offset is UTC-06:00
How to convert British Indian Ocean Time to Mountain Daylight Time?
Subtract 12 hours from British Indian Ocean Time to get Mountain Daylight Time.
Time in BIOT
00:00
Time in MDT
00:00
Use the slider above to convert British Indian Ocean Time to Mountain Daylight Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| BIOT | MDT |
|---|---|
| 12am | 12pm |
| 1am | 1pm |
| 2am | 2pm |
| 3am | 3pm |
| 4am | 4pm |
| 5am | 5pm |
| 6am | 6pm |
| 7am | 7pm |
| 8am | 8pm |
| 9am | 9pm |
| 10am | 10pm |
| 11am | 11pm |
| 12pm | 12am |
| 1pm | 1am |
| 2pm | 2am |
| 3pm | 3am |
| 4pm | 4am |
| 5pm | 5am |
| 6pm | 6am |
| 7pm | 7am |
| 8pm | 8am |
| 9pm | 9am |
| 10pm | 10am |
| 11pm | 11am |